Press.



T.. G. WOLFB.

PRESS. K APPLICATION PILEDYMAR.25,.191.1. Y

Y Patented Jamas, 1912.

T G. WOLFE.

PRESS.

APPLICATION FILED MARuZB,y 1911.

Patented M123, 1912.

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UNiTEnsTATs PATENTJQFFICE; .n

THOMAS or. Women,V or oirminoivra,l oKLAHoMA,

` PRESS specifi'ationlof tttesr'rateni. .g v Patented J an. 23,1912);

Appneationfaied Marchas, 191:1. serial Nonisises.

To all whom it mag/concern:

y Be it known that I, THOMAS Gr.v WOLFE, a citizen of the United States, residing at Oklahoma city, in the county ofrOklafhonia and State of Oklahornaphave invented certain new and useful Improvements 'in Presses, of wl'iich'- the 4following is a specification. Y v

This invention relates to improvements in presses,y and more particularly to'that type of pressknownas theiexpressing screwl My invent-ion is particularly adaptedifor' use iny connectionwith cotton-seedoil mills and is designed to receivecotton-seed -meal subsequent to its delivery from a cooker and when in suitablecondition to be' pressed for Y the purpose of extracting the cott-onlseed oil.

Inthe drawingsFivgure' is a side-elevation of the entire device. F 2` is a de. tailVV plan view yshowing lthe arrangement of the gearing etc. Fig. 3 `is an end elevation of the structure `shown in Fig. 2." Fig. Il is ay longitudinal sectional View ofjthe' press screw in elevation. xFig. 5 isa transverse section along the line 5 of Fig: al. t @is a partial detail view of one; of the'press plates. Fig. 7 is an endelevationy of a complete press plate.k Fig. 8 is` a partial `sectional view developed along therline 8 of Fig. 6.

Fig. 8a is a partial sectional view developed*I along the line Se of Fig. G. Fig. Q isa detail of several block members. FigwlO vis a detail sectionv ofi several block ineiiibersg' connecting links being shown in full. Fig. ll is a transverse section` ofa block and link. y y- Like numerals refer to like parts through-V out the drawings, inwhicli the numeral 20 designates the fonndationor floor to i'vhich it intended my" device shall` be? secured.

21 `is the main shaft having thefsciew 21a formed thereon. g At onen end "of the shaft exteriorly arranged of the press isfthe reduced portion Q2 journald in the pedestal and bearing 23, while lat the opposite e'nd is a reduced portion 2l. having `one or more" thrust collars 25v journaled.inthrustfbear? ings 26 carried by a pedestal or fra-nieworlit* 27 which is securely braced-to the pressV structure by an integral bracefineinber 28.

My screw is peculiarly formed with de,

pressions of a certain depthaf at the intake end, these openings being of an equal depth preferably for a certain number of turns when he depth is gradually decreased-iin A. In the vforni` shown, these grooves 35' i ln" `the arraiigeinent`v of structure these plates be arranged yfape a certain number of tui'iis to the' Idepth l). i i' This depth Z) is vmaintained fora certain predetermined 1nu1nbe`rof turns ywhen vit yis decreased gradually to the depth cfwhicliV in the drawing is maintained to the delivery fend of the screw.v It is obviousthat-any desired number of gradual steps may be provided, butinfiny preferable forinI have provided only three.v "The purposel of this stepping up will be described hereinafter.

The -press fboxproper of iny invention comprisesv a pair of' end frames 30 *andy ay plurality of press .plates 31' contained there-jY between. Each of said press plates issiin'i` larly constructedy and is formedwith notches or apertures-32 ateachcorner for a purpose hereinafter to be described. Each face othese plates'fis similarly formed; with., the' e'X`cepl.

Ationfof the two end plates '312 so.` that a de-f scriptionaof vone face "of theseplates'yvill sutiicef'or all.l As showirinFigs. 5 and 7 the faee of the plate `31 is providedl'with reducedlevelsat each sider and-at thelf i bottom-leaving raised portions across the top and at eachof theglowercorners and al centrali' annular-raised portion lnwhiicli" of theshape and arrangement shown. At

`rthe center of each offthese plates isr formed` a circular opening Aldesignedl toclosely fit the pressing screw as will be described hereinafter. The .grooves 35 are preferablyV verv "siii-all and are arranged equi-distaritly around the periphery of the central opening are very small at the periphery of thecir-k in rividth'and dept-li toward .the outer pel riphery of the raised portion' 3l to4 form passages 36 having the outwardly diverg-A ing sides 36T These passages vare prefer'-4 ably radially` arranged with respect tothe vcenter of the.circularropening A and inthe y forni show'ntliis arrangement will leavethe nonldepressed" `portion 87 between the grooves havingftheytwide front portion 37"' and gradually being" reduced to the' smaller portionf37 at the outer 'edge of the'raised portion 34': Each ofthese plates ing into the circular opening A and? ararecut a; plurality of grooves 35preferably.y i

v 31 is i formed with guide or keyway 38 open# rangedfat the 'upper portion of tl ie.platey 3l, vas shown in `Figsj and 7.

the completed Y i lshaft 21 and screw 21a to face as shown in Figs. 1 and 4 with their notches 32, keyways 38, and central openings A registering. Bolting members 40 of a cross section adapted to closely tit the notches or apertures 32 in the press plates are arranged longitudinally of the device and terminate in reduced threaded ends 41 projecting through and beyond the end frames 30 whereby they are engaged by suitable nuts 42 at each end so that the end frames and plates maybe closely bound together lto form the press-boxproper. The closely fit in the chamber formed by the succession of registering openings A in the press plates which I will refer to hereafter as the pressing chamber. j

Bl'cl''s 45 constructed and adapted to coact with the expressing screw 21'r1 are arranged as shown in the drawings, especially in Fig. 4. Each of these blocks 1s similarly formed with a lower portion 4G constructed to closely fit the depression between adjacent threads 21a of the screw, these blocks have an enlarged upper portion 47 approximately equal in length to the pitch of the screw 21a. Formed in the upper portion yof each of the blocks is a slot 48 in which is adapted to tit a connecting link 49. Each of these links is provided with a rounded end 50 and has a circular hole 50k near the end 50. The other end of said link is formed squarely and has a vertical slot 51. In the arrangement of the blocks and links, best shown in Fig. 10, I preferably insert rivets transversely ofthe upper part 47 of the box through the openings 50 in the links, these openings 50 being slightly larger than the diameter of the rivets to permit rotation of the links 49 on said rivets. Similar rivets are arranged transyversely at the forward portion of the blocks and pass loosely through the vertical slots 51. This forms a connecting means for the successive blocks and permits relative movement thereof as will appear later in the specification.

Att` each end of the pressbox preferably secured to and spacedl from the end frames 30 are guide pulleys or wheels 54 having side flanges 55 and carried by transverse shafts 56 journaled in the pedestals 57, which in turn are secured to the end frames 30 and braced thereby at 58 by suitable fastening means. The usual form of bearing caps 59 are provided where the transverse shafts 56 are journaled. Above the press-box and ex tending from the upper portion of one of said guide pulleys 54 to the other is a covered guide-way 60. Suitably secured below and adjacent to the press-box is the inclined trough 61 having an outlet or drain pipe 62 arrnged to lead to the settling or collecting tan In the preferred form of driving arrangement shown in Figs. 1, 2 and 3, 70 is a driving gear secured tothe end 24 of the shaft 21 eXteriorly of the thrust collar and bearings 25 and 26. Meshing with this gear is a smaller driving pinion 71 carried by a shaft 72 j ournaled at its outer end in bearings 73. Secured to the outer end of the shaft 72 adjacent the bearings 73 is a worm wheel 74 engaged and driven by a worm 76 journaled at either end in bearings 77 carried on suitable pedestals 7 7. This worm may be secured to any suitable source of power so that in the arrangement shown power is transmitted from the worm 76 to the worm wheel 74, through the pinion 71 to the gear 70, rotating the screw 21, 21a. It is to be understood that while I have shown this as my preferred form of driving means other suitable means may be employed if found preferable thereto.

78 designates a' general pedestal frame carrying the bars 73 and 77 and secured to the foundation 20.

A sprocket wheel 80 is secured to the shaft 72 and drives a chain 81, which in turn drives a second sprocket 82 carried by a shaft 83 journaled adjacent the sprocket 82 in suitable bearings 84 and intended to operate an oil pump 85, which has a supply or intake pipe 86 leading to any suitable supply of oil similaito that gathered from the expressing' of the machine. This pump 85 is adapted to discharge the oil through a. pipe 87 to a` main delivery pipe 88 having a plurality of branches 88 connected with openings in the upper part of the press-box.

A hopper90 of any suitable form is, located at. the intake end of the expressing end and is intended to receive the meal previous to its being expressed.

In the operation of my invention the meal is delivered t0 the hopper 90 whence it is carried on to the rst turn of the screw 2l having the depth a. The blocks 45 are constructed to tit exactly the depression between adjacent turns 0f the screw and at the intake end of the screw the shoulders formed by the increase in length of the upper portion 47 over the lower portion 46 of the blocks 45 willit on the upper surface of the threads 21a as shown in Fig. 4. These blocks are of a length approximately equal to the pitch of the screw having a small distance between successive blocks to allow relative movement between them and connected at the same linked position the distance from the forward face of one of said blocks to the forward face of the succeeding block is exactly equal to the pitch of the machine. As will be apparent from the description and drawings, at each turn of the screw each of these blocks 45-sliding in the keyways 38 of the press plates 31 will be carried forward a distance equal to the pitch of the screw until finally it has traversed the Whole length The .blocks/ilbeing',designed` to 'closelyjllf" i vblocks as the depth between theturnsof the. screwdecreasesas is clearlyshowni in Fig;V

`screw Willpreizent rotation'of the incoming "less pressure will Lbe exerted-against'ione ythem against thesidefot the keyw'ays 38,:

vbranch pipes 88 leading from adeliveryr positioniin the covered guide-Way` 60 to a" secondguide pulley/tfand. ,down intoren` 'y gagement with the .rst -turnofV the, screw again. Thus it Willfappeary thatthereiiiyill be one of these blocks, inengagement-fwith t each thread of thescrew and rotation'of the screw `Will move `the WholeV1 series of link blocks through .the press-box and around-the guide pulleys and through the Y guideivays 60. The meal being fed to the first turns of thelscrew 21' will llthe de ressionsbetiveen these turns with lVery litt el pressing effect' until thedepressionsot rthe depthfa are filled.

the spaces, between successiveJ "turns of/,the

material so that thel l'a'tteiiw'illbe traslafted*V .buth not rotated. It, will,l therefore,` bel ob,`v vious that when the depthotxtheffdepressions" between successive rturns of@ the screw-is 'de-F creased to thev depth bltlietmaterial Will have to be squeezed to acorresponding de'crease in'volume, thereby expressingmuch of' the contained juices. or flu-id. Corresponding expressing effect will then take place at'the: next decrease in depth and'so onzuntilthc thoroughly pressed; meal or material is dis-` 38 ofthe successive p`resser;p1ateswill 4have` to be increased to alloyTl yfor theiris'efofithe 4, VThe purpose of having the shoulders on the blocks closely fit the initial turnsgof the screw. is toipreventanyinaterialftrom pass-` l ingk by the tops of the threadk inf anyway" when firstted into the machine. f l It Will be obvious fromfthe descriptiol'i. and showing thatthe purpose of the blocks is to prevent rotation of themateriahandi there being a block carried i betiveeiveach: pair ot adjacent turns of the v threadfthe moteinent of the meal or othe-r'material Will be whollytranslation toward the discharge end of they screw. Naturally laygreater or face of the blocks Iand this Will tend'to; bind and to diminish the.-ffriction alongM `these keyvmysn from r` such pressure I provides.

pipe l88 to various `pointsnlong thel sid'e of: the keyways 3S.` Through thesepipes any? desired supply of oil-ofthelgindvcxpressed fromthe materialniav be delivered@by/'the act-ionof'the pump y By means otmy Ipeculiarflink. construe@ rivet connections l kthe event "ithatfany of such. fragments' do I do not 52- fpassingi "through` the links 49. 51m the links will permit ysuccessive blocks y tomovegvertically re'latiye .to eachother as l the blocks move' from one endy of theiscrew! Y t'othe other sol thatv as thev depth between ,the turns of thescrew. decreases'oneblock malyffriserelati'e tothe succeeding blc'clfni` 5 i n' the construction of the press 'plates `3l teifvals, stated above, `about thefperiphery otthecircular opening A and these grooves 35 a'rearranged in.. staggered relation on ad# jacentv plates, as shown in Figs-i6, 8 'nnd f I` arrange ,the grooyes 35,'at equidistant-int. Y

The" purpose off the peculiar construction A the liabilityof fragments kof "thegmaterialf being vv"squeezed` being Fforced through ,the

drain passageswis greatly decreased and inv become 'forced ythrough [by enlarging AVand broa'denin the drain passagesff GKtlie fore/egg f 'ofi thef'foi` or expressed juices following through such apertures 'will tend to dislodge and carry out any s niall fragments that vmay 34 and 34:"V lyingapproxiniatelyin, theysafme/` plane when 'adjacent plates are in contact the depressed portions 33 as is clearly-` shfwn sof i 'have lodged therein,` The.raisedjportions L l Vfivillfallow'drainoiltletsto ybe formedalongl charged at the discharge end ,of the s`s 'c'rew It is obvious that they depthlof `the keyways" in Figs., l" and In -Iny preferablefconf struction no depressed portion yis'l proyided l -Vofmy invention.` f y i, v v n yVhatjI seek to" cover 'by VUnited "Shtatess` Patent and 1lclaimn i'S-,v y v lLrIna device of the class described, a fr ov4 tatable shaft carrying an expressing screw; afplurality of4 vpress "plates carriedl in `"iframe,"said plates being formed lwith a ;cy. ylindricall opening therethrough, `saldlexpressing screw being adaptedto closely fitl and co'act `With-the periplieryfof sa1d1c. `ylmVV `dricalopening, substantially as described.` f y at-the upper-part of lthe pressrplates 311301* that the expressed fluid'WillflowfwhollyoutV f? ofthe bottom and 10,0

d trough 61.y

irish to restrictwmyself toyithede-r i QIn adeiicef the classQdescribedj,V affro-n tatablev shaft carryingN i: an expressing. screw, a plurality "of pressplatescarried in' a frame. i saidi'platesjbeing formed vwith a' cylindrical'- op@ning/therethrough, said expressing screw beingl adapted te closely ftit and" coact l)vithn the .peripherv of -"said cylindrical opening. means/to drive saidfshaft and screw, and,y j means 'Wherebymaterial to be pressedy may `be v"ted tog'said expressing screwuat one. end

thereof."` A u .t y i :In afdevlce ofthe class described, airof tatable'shaft 'carrying aan expressing screw,

`a pluralityof press plates carried'ina frame;

said plates being formed "with a cylindrical :press-box'formed of a the 1ncoming material the embodied fluid matter, the periphery of said press-box by the rotation of said screw, and a trough located beneath Said press-box and adapted to collect the expressed fluid.

7. n a device of the class de scribed, a press-box formed of a plates carried between end frames, said press-box4 containing a pressing' chamber comprising a longitudinal cylindrical opening formed therein, an expressing screw formed on a rotatable shaft closely fitting and adapted to coact with the surface of said pressingchamber, the surface of said chamber being' provided with apertures for the discharge of expressed Huid, the depressions between the threads of said screw decreasing in depth from the su ply end to the discharge end, movable bloc cs adapted to closely fit the depressions between successive threads of said screw, each of said blocks being formed with a depending portion adapted to closely fit the depression between the threads of said screw and with an u per portion approximately equal in widtlli3 to the pitch of said screw, said blocks being adapted to move longitudinally of said press-box being guided in -such movement by a keyway in the upper portion of said pressing chamber, said blocks at the conclusion of their movement through the pressing chamber being carried around one of said pulleys through said guide-way in an inverted position around the second of said pulleys and into engagement again with the threads of said screw, said blocks being so linked together as to permit relative vertilcal movement when in contact with depressions between the threads of said screw which are decreasing in depth and to permit the necessary divergence of successive ones of said blocks in passing around said .iulleys S. In a device of the class described, a press-box comprising end frame plates and a plurality of press plates carried therebetween, each of said plates being formed with a circular opening and a keyway at the top of such opening said openings being adapted to register to form a pressing chamber and said leyways being' adapted to register to form a continuous keyway when said press plates are iniassembled position.

In a device of the class described, an expressing screw rotating in a press-box, said press-box comprising end frames and a series of press plates carried therebetween, each of said plates being'formed with a cirraised portion adjacent the edge of said opening, said raised portion having small.serrations at intervals along the edge of said circular opening, said circular openings registering to form a pressing chamber for and to coact with a pressing screw. said Serrat-ions providing drain holes for the expressed fluid.

10. In a device of theclass described, an expressing screw rotating in a press-box,

opening therethrough, said expressing screw being adapted to closely fit and coactwith the periphery of said cylindrical opening, and movable means coacting with said screw to prevent rotation of the material to be pressed. f

4. In a device ofthe class described, a rotatable'shaft carrying an expressing `screw, a plurality of press plates carried in a frame, said plates being formed with a cylindrical opening therethrough, said expressing screw being adapted to closely fit and coact with t e periphery of said cylindrical opening, the depressions between the turns of said screw gradually decreasing in depth from one end of the screw to the other, whereby is pressed to expel plurality of press said cylindrical opening being `provided with small apertures whereby the expressed fluid may be expelled.

5. In a device of the class described, a press-box formed of a series of press plates carried between end frames, said press-box havingy a pressing chamber comprising a longitudinal cylindrical opening formed therein, an expressing screw formed on a rotatable shaft closely fitting and adapted tov coact with the surface of said cylindrical opening, said surface being provided with apertures for the discharge of the expressed fluid, the depressions between the successive threads of said screw decreasing in depth from the supply end to the discharge end, movable blocks adapted to closely lit a depression between the successive threads of said screw, said blocks being connected so as to permit movement, said blocks being guided by a keyway in the upper portion of said prgssing chamber whereby said blocks will be"'moved longitudinally of said pressbox upon rotation of said screw and rotative movement of the material to be vpressed will be prevented.

6. In a device of ,they class described, a plurality of press end frames, said pressing chamber cylindrical openplates carried between pressox containing a comprising a longitudinal ing formed therein, an expressing screw formed on a rotatable shaft closely fitting and adapted to coact withl the surface of said pressing chamber, the surface of said 'chamber being provided with apertures for thedischarge of expressed fluid, the depressions between the threads of said screw decreasing in depth from the supply endV of the discharge end, movable blocks adapted to closely fit the depressions between successive threads of said screw, said blocks being linked togetherto form an endless chain andy carried around a guide pulley at each end of said press-box and through a guide between the upper portions of said pulleys, whereby said blocks will be moved longitudinally of passages decreasing in depth and `width towardtlieir inner extremities and terminate ing in small serrations atthe edge of saidI circular openings, said circular.y openings registering to form a pressing chamber for vand to coact with said expressingscrew, said serrations providing drain holes for the expressed fiuid. o y

11. In a device'y of the class described, an expressing screwv rotating in 'a' press-box, said press-box comprising end'frames and a series of press plates carried` therebetween, each of said plates being similarly formed on each side with a circular opening and a raised portion adjacent the edgeof said opening, saidraised portion being provided with radially disposeddrain passages gdecreasing in depth and Width toward their inner extremities and terminating in small serrations at the edge of said circular, open ings, said circular openings registering to form a pressing ychamber for and to coact with said expressing-screw, said serrations l series of press platescarried therebetween, f i' providing drain holes for `the expressed fluid. i i

12. In a device of the class described, an expressing screw rotating in a press-box, said press-box comprising endfi-ames and a series of press plates carriedy therebetween, each of said plates being similarly formed on each side with a circular opening and a: raised portion adjacent 'the edge of said opening, said raised portion being provided with radially disposed drain passages de#- creasing in depth and width toward their inner extremities `and terminating in small serrations at the edge of said circular openings, said circular openings registering te form a pressing chamber for and to coact with said expressing screw, said serrations providing drainlioles for the expressed fluid, said serrations and passagesbei'nv rlocated at equal intervalsaround said raised portion and being so located that when said plates are assembled the serrations in one' plate will be in staggered oralternateprelation with c the serrations of the contiguous 4ace of the adjacent plate. ,y

13. In a device of theclass described, an expressing screwl rotating in a press-box, said press-box comprising end frames and a e said press-box comprising end 'frames and a j veach of said plates being formed with-a cireachofthe said plates being formed* on each sideV with a circular opening,- an annulary raised portion around-the edge of said openj j i ing and withraised portions at the top and the lower corners of said press plates, all of said raised portions lying in the saine plane, g o r' said annular raised portion being provided with grooves terminating in small serrations at equi-distant intervals along the edge of said circular opening, said circular openings yregistering to `ferm a press chamber for and to coact with said expressing screw, said ser-v rations Kproviding drain holes for the extom Vof said press1 plates when inassembled relation. 5 .y 1

, 14;. In a device of .theclass described, an expressing screw rotating in a? press-box.

said press-box comprising end frames and a i series of press plates carried therebetween,

cular opening and notches atthe corners, longitudinal lbolting.members fitting cornery notches in said plates;safid boltingmembers being -formed withifreduced threaded ends adaptedxto projectthrough and beyond said vo e ' pressediluid and thedepressed :portions of i g said press plates forming outlet apertures lftor'theexpressed Huid in the sidesjandybotend frames and be engaged by nuts to bring l the end frames and press plates into assenibled relation and to retain them in such relation, the circular openingsin said plates registering to form .ar press. chamber to ycoact with saidgexpressing screw', said press plates/being provided with outlet apertures for the passage ofexpressed fluid; 15( In akdevicefotthe lass described, an

expressing "screw rotating in a press-box, said press-box comprising end trames and a series of press plates carried therebetween,

each lot said plates being formed with acircularopening and a'keyway adjacent said opening, said openings and said keywys ,registering to forma press chamber end a I ,longitudinal keyvvay respectively in said' f press-box, a series, of movable blocksy adapted to coact with the threads of said expressing screw and guided longitudinally thereof in ios Y said keyway, and means for lubricating said i movable blocks their passage through said e ,y

keyway. e p t v j y t Intestimony whereof, I have subscribed my name. i c e B. F. GILL, VAN F. Itinewnr.

rnoiixs e. wonen. 'i 

